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	<h1>Class CI_Form_validation</h1>


	<div class="description">
	
<p>Form Validation Class</p>

	</div>









	<div class="info">
		
		
		
		<b>Package:</b> <a href="package-CodeIgniter.html">CodeIgniter</a>\<a href="package-CodeIgniter.Libraries.html">Libraries</a><br />

				<b>Category:</b>
				Validation<br />
				<b>Author:</b>
				ExpressionEngine Dev Team<br />
				<b>Link:</b>
				<a href="http://codeigniter.com/user_guide/libraries/form_validation.html">http://codeigniter.com/user_guide/libraries/form_validation.html</a><br />
		<b>Located at</b> <a href="source-class-CI_Form_validation.html#18-1378" title="Go to source code">system/libraries/Form_validation.php</a><br />
	</div>



	<table class="summary" id="methods">
	<caption>Methods summary</caption>
	<tr data-order="__construct" id="___construct">

		<td class="attributes"><code>
			 public 
			
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#___construct">#</a>
		<code><a href="source-class-CI_Form_validation.html#39-59" title="Go to source code">__construct</a>( <span>mixed <var>$rules</var> = <span class="php-keyword1">array</span>()</span> )</code>

		<div class="description short">
			
<p>Constructor</p>

		</div>

		<div class="description detailed hidden">
			
<p>Constructor</p>








		</div>
		</div></td>
	</tr>
	<tr data-order="set_rules" id="_set_rules">

		<td class="attributes"><code>
			 public 
			
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_set_rules">#</a>
		<code><a href="source-class-CI_Form_validation.html#63-150" title="Go to source code">set_rules</a>( <span>mixed <var>$field</var></span>, <span>string <var>$label</var> = <span class="php-quote">''</span></span>, <span>mixed <var>$rules</var> = <span class="php-quote">''</span></span> )</code>

		<div class="description short">
			
<p>Set Rules</p>

		</div>

		<div class="description detailed hidden">
			
<p>Set Rules</p>

<p>This function takes an array of field names and validation rules as input,
validates the info, and stores it</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$field</var></dt>
					<dd><code>mixed</code></dd>
					<dt><var>$label</var></dt>
					<dd><code>string</code></dd>
					<dt><var>$rules</var></dt>
					<dd></dd>
				</dl></div>





		</div>
		</div></td>
	</tr>
	<tr data-order="set_message" id="_set_message">

		<td class="attributes"><code>
			 public 
			string
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_set_message">#</a>
		<code><a href="source-class-CI_Form_validation.html#154-175" title="Go to source code">set_message</a>( <span>string <var>$lang</var></span>, <span>string <var>$val</var> = <span class="php-quote">''</span></span> )</code>

		<div class="description short">
			
<p>Set Error Message</p>

		</div>

		<div class="description detailed hidden">
			
<p>Set Error Message</p>

<p>Lets users set their own error messages on the fly. Note: The key name has to
match the function name that it corresponds to.</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$lang</var></dt>
					<dd><code>string</code></dd>
					<dt><var>$val</var></dt>
					<dd><code>string</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>string</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="set_error_delimiters" id="_set_error_delimiters">

		<td class="attributes"><code>
			 public 
			
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_set_error_delimiters">#</a>
		<code><a href="source-class-CI_Form_validation.html#179-195" title="Go to source code">set_error_delimiters</a>( <span>string <var>$prefix</var> = <span class="php-quote">'&lt;p&gt;'</span></span>, <span>string <var>$suffix</var> = <span class="php-quote">'&lt;/p&gt;'</span></span> )</code>

		<div class="description short">
			
<p>Set The Error Delimiter</p>

		</div>

		<div class="description detailed hidden">
			
<p>Set The Error Delimiter</p>

<p>Permits a prefix/suffix to be added to each error message</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$prefix</var></dt>
					<dd><code>string</code></dd>
					<dt><var>$suffix</var></dt>
					<dd><code>string</code></dd>
				</dl></div>





		</div>
		</div></td>
	</tr>
	<tr data-order="error" id="_error">

		<td class="attributes"><code>
			 public 
			
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_error">#</a>
		<code><a href="source-class-CI_Form_validation.html#199-226" title="Go to source code">error</a>( <span>string <var>$field</var> = <span class="php-quote">''</span></span>, <span>mixed <var>$prefix</var> = <span class="php-quote">''</span></span>, <span>mixed <var>$suffix</var> = <span class="php-quote">''</span></span> )</code>

		<div class="description short">
			
<p>Get Error Message</p>

		</div>

		<div class="description detailed hidden">
			
<p>Get Error Message</p>

<p>Gets the error message associated with a particular field</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$field</var></dt>
					<dd><code>string</code><br>the field name</dd>
					<dt><var>$prefix</var></dt>
					<dd></dd>
					<dt><var>$suffix</var></dt>
					<dd></dd>
				</dl></div>





		</div>
		</div></td>
	</tr>
	<tr data-order="error_string" id="_error_string">

		<td class="attributes"><code>
			 public 
			str
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_error_string">#</a>
		<code><a href="source-class-CI_Form_validation.html#230-269" title="Go to source code">error_string</a>( <span>string <var>$prefix</var> = <span class="php-quote">''</span></span>, <span>string <var>$suffix</var> = <span class="php-quote">''</span></span> )</code>

		<div class="description short">
			
<p>Error String</p>

		</div>

		<div class="description detailed hidden">
			
<p>Error String</p>

<p>Returns the error messages as a string, wrapped in the error delimiters</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$prefix</var></dt>
					<dd><code>string</code></dd>
					<dt><var>$suffix</var></dt>
					<dd><code>string</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>str</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="run" id="_run">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_run">#</a>
		<code><a href="source-class-CI_Form_validation.html#273-363" title="Go to source code">run</a>( <span>mixed <var>$group</var> = <span class="php-quote">''</span></span> )</code>

		<div class="description short">
			
<p>Run the Validator</p>

		</div>

		<div class="description detailed hidden">
			
<p>Run the Validator</p>

<p>This function does all the work.</p>




				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="_reduce_array" id="__reduce_array">

		<td class="attributes"><code>
			 protected 
			mixed
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#__reduce_array">#</a>
		<code><a href="source-class-CI_Form_validation.html#367-398" title="Go to source code">_reduce_array</a>( <span>array <var>$array</var></span>, <span>array <var>$keys</var></span>, <span>integer <var>$i</var> = <span class="php-num">0</span></span> )</code>

		<div class="description short">
			
<p>Traverse a multidimensional $_POST array index until the data is found</p>

		</div>

		<div class="description detailed hidden">
			
<p>Traverse a multidimensional $_POST array index until the data is found</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$array</var></dt>
					<dd><code>array</code></dd>
					<dt><var>$keys</var></dt>
					<dd><code>array</code></dd>
					<dt><var>$i</var></dt>
					<dd><code>integer</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>mixed</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="_reset_post_array" id="__reset_post_array">

		<td class="attributes"><code>
			 protected 
			null
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#__reset_post_array">#</a>
		<code><a href="source-class-CI_Form_validation.html#402-456" title="Go to source code">_reset_post_array</a>( )</code>

		<div class="description short">
			
<p>Re-populate the _POST array with our finalized and processed data</p>

		</div>

		<div class="description detailed hidden">
			
<p>Re-populate the _POST array with our finalized and processed data</p>




				<h4>Returns</h4>
				<div class="list">
					<code>null</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="_execute" id="__execute">

		<td class="attributes"><code>
			 protected 
			mixed
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#__execute">#</a>
		<code><a href="source-class-CI_Form_validation.html#460-686" title="Go to source code">_execute</a>( <span>array <var>$row</var></span>, <span>array <var>$rules</var></span>, <span>mixed <var>$postdata</var> = <span class="php-keyword1">NULL</span></span>, <span>integer <var>$cycles</var> = <span class="php-num">0</span></span> )</code>

		<div class="description short">
			
<p>Executes the Validation routines</p>

		</div>

		<div class="description detailed hidden">
			
<p>Executes the Validation routines</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$row</var></dt>
					<dd><code>array</code></dd>
					<dt><var>$rules</var></dt>
					<dd><code>array</code></dd>
					<dt><var>$postdata</var></dt>
					<dd><code>mixed</code></dd>
					<dt><var>$cycles</var></dt>
					<dd><code>integer</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>mixed</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="_translate_fieldname" id="__translate_fieldname">

		<td class="attributes"><code>
			 protected 
			string
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#__translate_fieldname">#</a>
		<code><a href="source-class-CI_Form_validation.html#690-714" title="Go to source code">_translate_fieldname</a>( <span>string <var>$fieldname</var></span> )</code>

		<div class="description short">
			
<p>Translate a field name</p>

		</div>

		<div class="description detailed hidden">
			
<p>Translate a field name</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$fieldname</var></dt>
					<dd><code>string</code><br>the field name</dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>string</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="set_value" id="_set_value">

		<td class="attributes"><code>
			 public 
			
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_set_value">#</a>
		<code><a href="source-class-CI_Form_validation.html#718-744" title="Go to source code">set_value</a>( <span>string <var>$field</var> = <span class="php-quote">''</span></span>, <span>string <var>$default</var> = <span class="php-quote">''</span></span> )</code>

		<div class="description short">
			
<p>Get the value from a form</p>

		</div>

		<div class="description detailed hidden">
			
<p>Get the value from a form</p>

<p>Permits you to repopulate a form field with the value it was submitted with,
or, if that value doesn't exist, with the default</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$field</var></dt>
					<dd><code>string</code><br>the field name</dd>
					<dt><var>$default</var></dt>
					<dd><code>string</code></dd>
				</dl></div>





		</div>
		</div></td>
	</tr>
	<tr data-order="set_select" id="_set_select">

		<td class="attributes"><code>
			 public 
			string
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_set_select">#</a>
		<code><a href="source-class-CI_Form_validation.html#748-788" title="Go to source code">set_select</a>( <span>string <var>$field</var> = <span class="php-quote">''</span></span>, <span>string <var>$value</var> = <span class="php-quote">''</span></span>, <span>mixed <var>$default</var> = <span class="php-keyword1">FALSE</span></span> )</code>

		<div class="description short">
			
<p>Set Select</p>

		</div>

		<div class="description detailed hidden">
			
<p>Set Select</p>

<p>Enables pull-down lists to be set to the value the user selected in the event
of an error</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$field</var></dt>
					<dd><code>string</code></dd>
					<dt><var>$value</var></dt>
					<dd><code>string</code></dd>
					<dt><var>$default</var></dt>
					<dd></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>string</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="set_radio" id="_set_radio">

		<td class="attributes"><code>
			 public 
			string
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_set_radio">#</a>
		<code><a href="source-class-CI_Form_validation.html#792-832" title="Go to source code">set_radio</a>( <span>string <var>$field</var> = <span class="php-quote">''</span></span>, <span>string <var>$value</var> = <span class="php-quote">''</span></span>, <span>mixed <var>$default</var> = <span class="php-keyword1">FALSE</span></span> )</code>

		<div class="description short">
			
<p>Set Radio</p>

		</div>

		<div class="description detailed hidden">
			
<p>Set Radio</p>

<p>Enables radio buttons to be set to the value the user selected in the event
of an error</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$field</var></dt>
					<dd><code>string</code></dd>
					<dt><var>$value</var></dt>
					<dd><code>string</code></dd>
					<dt><var>$default</var></dt>
					<dd></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>string</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="set_checkbox" id="_set_checkbox">

		<td class="attributes"><code>
			 public 
			string
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_set_checkbox">#</a>
		<code><a href="source-class-CI_Form_validation.html#836-876" title="Go to source code">set_checkbox</a>( <span>string <var>$field</var> = <span class="php-quote">''</span></span>, <span>string <var>$value</var> = <span class="php-quote">''</span></span>, <span>mixed <var>$default</var> = <span class="php-keyword1">FALSE</span></span> )</code>

		<div class="description short">
			
<p>Set Checkbox</p>

		</div>

		<div class="description detailed hidden">
			
<p>Set Checkbox</p>

<p>Enables checkboxes to be set to the value the user selected in the event of
an error</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$field</var></dt>
					<dd><code>string</code></dd>
					<dt><var>$value</var></dt>
					<dd><code>string</code></dd>
					<dt><var>$default</var></dt>
					<dd></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>string</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="required" id="_required">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_required">#</a>
		<code><a href="source-class-CI_Form_validation.html#880-897" title="Go to source code">required</a>( <span>string <var>$str</var></span> )</code>

		<div class="description short">
			
<p>Required</p>

		</div>

		<div class="description detailed hidden">
			
<p>Required</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="regex_match" id="_regex_match">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_regex_match">#</a>
		<code><a href="source-class-CI_Form_validation.html#901-917" title="Go to source code">regex_match</a>( <span>string <var>$str</var></span>, <span>regex <var>$regex</var></span> )</code>

		<div class="description short">
			
<p>Performs a Regular Expression match test.</p>

		</div>

		<div class="description detailed hidden">
			
<p>Performs a Regular Expression match test.</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
					<dt><var>$regex</var></dt>
					<dd><code>regex</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="matches" id="_matches">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_matches">#</a>
		<code><a href="source-class-CI_Form_validation.html#921-939" title="Go to source code">matches</a>( <span>string <var>$str</var></span>, <span>field <var>$field</var></span> )</code>

		<div class="description short">
			
<p>Match one field to another</p>

		</div>

		<div class="description detailed hidden">
			
<p>Match one field to another</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
					<dt><var>$field</var></dt>
					<dd><code>field</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="is_unique" id="_is_unique">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_is_unique">#</a>
		<code><a href="source-class-CI_Form_validation.html#943-957" title="Go to source code">is_unique</a>( <span>string <var>$str</var></span>, <span>field <var>$field</var></span> )</code>

		<div class="description short">
			
<p>Match one field to another</p>

		</div>

		<div class="description detailed hidden">
			
<p>Match one field to another</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
					<dt><var>$field</var></dt>
					<dd><code>field</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="min_length" id="_min_length">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_min_length">#</a>
		<code><a href="source-class-CI_Form_validation.html#961-982" title="Go to source code">min_length</a>( <span>string <var>$str</var></span>, <span>value <var>$val</var></span> )</code>

		<div class="description short">
			
<p>Minimum Length</p>

		</div>

		<div class="description detailed hidden">
			
<p>Minimum Length</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
					<dt><var>$val</var></dt>
					<dd><code>value</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="max_length" id="_max_length">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_max_length">#</a>
		<code><a href="source-class-CI_Form_validation.html#986-1007" title="Go to source code">max_length</a>( <span>string <var>$str</var></span>, <span>value <var>$val</var></span> )</code>

		<div class="description short">
			
<p>Max Length</p>

		</div>

		<div class="description detailed hidden">
			
<p>Max Length</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
					<dt><var>$val</var></dt>
					<dd><code>value</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="exact_length" id="_exact_length">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_exact_length">#</a>
		<code><a href="source-class-CI_Form_validation.html#1011-1032" title="Go to source code">exact_length</a>( <span>string <var>$str</var></span>, <span>value <var>$val</var></span> )</code>

		<div class="description short">
			
<p>Exact Length</p>

		</div>

		<div class="description detailed hidden">
			
<p>Exact Length</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
					<dt><var>$val</var></dt>
					<dd><code>value</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="valid_email" id="_valid_email">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_valid_email">#</a>
		<code><a href="source-class-CI_Form_validation.html#1036-1046" title="Go to source code">valid_email</a>( <span>string <var>$str</var></span> )</code>

		<div class="description short">
			
<p>Valid Email</p>

		</div>

		<div class="description detailed hidden">
			
<p>Valid Email</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="valid_emails" id="_valid_emails">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_valid_emails">#</a>
		<code><a href="source-class-CI_Form_validation.html#1050-1073" title="Go to source code">valid_emails</a>( <span>string <var>$str</var></span> )</code>

		<div class="description short">
			
<p>Valid Emails</p>

		</div>

		<div class="description detailed hidden">
			
<p>Valid Emails</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="valid_ip" id="_valid_ip">

		<td class="attributes"><code>
			 public 
			string
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_valid_ip">#</a>
		<code><a href="source-class-CI_Form_validation.html#1077-1088" title="Go to source code">valid_ip</a>( <span>string <var>$ip</var></span>, <span>string <var>$which</var> = <span class="php-quote">''</span></span> )</code>

		<div class="description short">
			
<p>Validate IP Address</p>

		</div>

		<div class="description detailed hidden">
			
<p>Validate IP Address</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$ip</var></dt>
					<dd><code>string</code></dd>
					<dt><var>$which</var></dt>
					<dd><code>string</code><br>"ipv4" or "ipv6" to validate a specific ip format</dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>string</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="alpha" id="_alpha">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_alpha">#</a>
		<code><a href="source-class-CI_Form_validation.html#1092-1102" title="Go to source code">alpha</a>( <span>string <var>$str</var></span> )</code>

		<div class="description short">
			
<p>Alpha</p>

		</div>

		<div class="description detailed hidden">
			
<p>Alpha</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="alpha_numeric" id="_alpha_numeric">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_alpha_numeric">#</a>
		<code><a href="source-class-CI_Form_validation.html#1106-1116" title="Go to source code">alpha_numeric</a>( <span>string <var>$str</var></span> )</code>

		<div class="description short">
			
<p>Alpha-numeric</p>

		</div>

		<div class="description detailed hidden">
			
<p>Alpha-numeric</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="alpha_dash" id="_alpha_dash">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_alpha_dash">#</a>
		<code><a href="source-class-CI_Form_validation.html#1120-1130" title="Go to source code">alpha_dash</a>( <span>string <var>$str</var></span> )</code>

		<div class="description short">
			
<p>Alpha-numeric with underscores and dashes</p>

		</div>

		<div class="description detailed hidden">
			
<p>Alpha-numeric with underscores and dashes</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="numeric" id="_numeric">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_numeric">#</a>
		<code><a href="source-class-CI_Form_validation.html#1134-1145" title="Go to source code">numeric</a>( <span>string <var>$str</var></span> )</code>

		<div class="description short">
			
<p>Numeric</p>

		</div>

		<div class="description detailed hidden">
			
<p>Numeric</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="is_numeric" id="_is_numeric">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_is_numeric">#</a>
		<code><a href="source-class-CI_Form_validation.html#1149-1159" title="Go to source code">is_numeric</a>( <span>string <var>$str</var></span> )</code>

		<div class="description short">
			
<p>Is Numeric</p>

		</div>

		<div class="description detailed hidden">
			
<p>Is Numeric</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="integer" id="_integer">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_integer">#</a>
		<code><a href="source-class-CI_Form_validation.html#1163-1173" title="Go to source code">integer</a>( <span>string <var>$str</var></span> )</code>

		<div class="description short">
			
<p>Integer</p>

		</div>

		<div class="description detailed hidden">
			
<p>Integer</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="decimal" id="_decimal">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_decimal">#</a>
		<code><a href="source-class-CI_Form_validation.html#1177-1187" title="Go to source code">decimal</a>( <span>string <var>$str</var></span> )</code>

		<div class="description short">
			
<p>Decimal number</p>

		</div>

		<div class="description detailed hidden">
			
<p>Decimal number</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="greater_than" id="_greater_than">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_greater_than">#</a>
		<code><a href="source-class-CI_Form_validation.html#1191-1205" title="Go to source code">greater_than</a>( <span>string <var>$str</var></span>, <span>mixed <var>$min</var></span> )</code>

		<div class="description short">
			
<p>Greather than</p>

		</div>

		<div class="description detailed hidden">
			
<p>Greather than</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
					<dt><var>$min</var></dt>
					<dd></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="less_than" id="_less_than">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_less_than">#</a>
		<code><a href="source-class-CI_Form_validation.html#1209-1223" title="Go to source code">less_than</a>( <span>string <var>$str</var></span>, <span>mixed <var>$max</var></span> )</code>

		<div class="description short">
			
<p>Less than</p>

		</div>

		<div class="description detailed hidden">
			
<p>Less than</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
					<dt><var>$max</var></dt>
					<dd></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="is_natural" id="_is_natural">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_is_natural">#</a>
		<code><a href="source-class-CI_Form_validation.html#1227-1237" title="Go to source code">is_natural</a>( <span>string <var>$str</var></span> )</code>

		<div class="description short">
			
<p>Is a Natural number (0,1,2,3, etc.)</p>

		</div>

		<div class="description detailed hidden">
			
<p>Is a Natural number (0,1,2,3, etc.)</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="is_natural_no_zero" id="_is_natural_no_zero">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_is_natural_no_zero">#</a>
		<code><a href="source-class-CI_Form_validation.html#1241-1261" title="Go to source code">is_natural_no_zero</a>( <span>string <var>$str</var></span> )</code>

		<div class="description short">
			
<p>Is a Natural number, but not a zero (1,2,3, etc.)</p>

		</div>

		<div class="description detailed hidden">
			
<p>Is a Natural number, but not a zero (1,2,3, etc.)</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="valid_base64" id="_valid_base64">

		<td class="attributes"><code>
			 public 
			boolean
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_valid_base64">#</a>
		<code><a href="source-class-CI_Form_validation.html#1265-1278" title="Go to source code">valid_base64</a>( <span>string <var>$str</var></span> )</code>

		<div class="description short">
			
<p>Valid Base64</p>

		</div>

		<div class="description detailed hidden">
			
<p>Valid Base64</p>

<p>Tests a string for characters outside of the Base64 alphabet as defined by
RFC 2045 <a
href="http://www.faqs.org/rfcs/rfc2045">http://www.faqs.org/rfcs/rfc2045</a></p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>boolean</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="prep_for_form" id="_prep_for_form">

		<td class="attributes"><code>
			 public 
			string
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_prep_for_form">#</a>
		<code><a href="source-class-CI_Form_validation.html#1282-1310" title="Go to source code">prep_for_form</a>( <span>string <var>$data</var> = <span class="php-quote">''</span></span> )</code>

		<div class="description short">
			
<p>Prep data for form</p>

		</div>

		<div class="description detailed hidden">
			
<p>Prep data for form</p>

<p>This function allows HTML to be safely shown in a form. Special characters
are converted.</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$data</var></dt>
					<dd><code>string</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>string</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="prep_url" id="_prep_url">

		<td class="attributes"><code>
			 public 
			string
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_prep_url">#</a>
		<code><a href="source-class-CI_Form_validation.html#1314-1334" title="Go to source code">prep_url</a>( <span>string <var>$str</var> = <span class="php-quote">''</span></span> )</code>

		<div class="description short">
			
<p>Prep URL</p>

		</div>

		<div class="description detailed hidden">
			
<p>Prep URL</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>string</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="strip_image_tags" id="_strip_image_tags">

		<td class="attributes"><code>
			 public 
			string
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_strip_image_tags">#</a>
		<code><a href="source-class-CI_Form_validation.html#1338-1348" title="Go to source code">strip_image_tags</a>( <span>string <var>$str</var></span> )</code>

		<div class="description short">
			
<p>Strip Image Tags</p>

		</div>

		<div class="description detailed hidden">
			
<p>Strip Image Tags</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>string</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="xss_clean" id="_xss_clean">

		<td class="attributes"><code>
			 public 
			string
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_xss_clean">#</a>
		<code><a href="source-class-CI_Form_validation.html#1352-1362" title="Go to source code">xss_clean</a>( <span>string <var>$str</var></span> )</code>

		<div class="description short">
			
<p>XSS Clean</p>

		</div>

		<div class="description detailed hidden">
			
<p>XSS Clean</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>string</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	<tr data-order="encode_php_tags" id="_encode_php_tags">

		<td class="attributes"><code>
			 public 
			string
			
			</code>
		</td>

		<td class="name"><div>
		<a class="anchor" href="#_encode_php_tags">#</a>
		<code><a href="source-class-CI_Form_validation.html#1366-1376" title="Go to source code">encode_php_tags</a>( <span>string <var>$str</var></span> )</code>

		<div class="description short">
			
<p>Convert PHP tags to entities</p>

		</div>

		<div class="description detailed hidden">
			
<p>Convert PHP tags to entities</p>



				<h4>Parameters</h4>
				<div class="list"><dl>
					<dt><var>$str</var></dt>
					<dd><code>string</code></dd>
				</dl></div>

				<h4>Returns</h4>
				<div class="list">
					<code>string</code><br />
				</div>




		</div>
		</div></td>
	</tr>
	</table>












	<table class="summary" id="properties">
	<caption>Properties summary</caption>
	<tr data-order="CI" id="$CI">
		<td class="attributes"><code>
			protected  
			mixed
		</code></td>

		<td class="name">
				<a href="source-class-CI_Form_validation.html#29" title="Go to source code"><var>$CI</var></a>
		</td>
		<td class="value"><code></code></td>
		<td class="description"><div>
			<a href="#$CI" class="anchor">#</a>

			<div class="description short">
				
			</div>

			<div class="description detailed hidden">
				

			</div>
		</div></td>
	</tr>
	<tr data-order="_field_data" id="$_field_data">
		<td class="attributes"><code>
			protected  
			array
		</code></td>

		<td class="name">
				<a href="source-class-CI_Form_validation.html#30" title="Go to source code"><var>$_field_data</var></a>
		</td>
		<td class="value"><code><span class="php-keyword1">array</span>()</code></td>
		<td class="description"><div>
			<a href="#$_field_data" class="anchor">#</a>

			<div class="description short">
				
			</div>

			<div class="description detailed hidden">
				

			</div>
		</div></td>
	</tr>
	<tr data-order="_config_rules" id="$_config_rules">
		<td class="attributes"><code>
			protected  
			array
		</code></td>

		<td class="name">
				<a href="source-class-CI_Form_validation.html#31" title="Go to source code"><var>$_config_rules</var></a>
		</td>
		<td class="value"><code><span class="php-keyword1">array</span>()</code></td>
		<td class="description"><div>
			<a href="#$_config_rules" class="anchor">#</a>

			<div class="description short">
				
			</div>

			<div class="description detailed hidden">
				

			</div>
		</div></td>
	</tr>
	<tr data-order="_error_array" id="$_error_array">
		<td class="attributes"><code>
			protected  
			array
		</code></td>

		<td class="name">
				<a href="source-class-CI_Form_validation.html#32" title="Go to source code"><var>$_error_array</var></a>
		</td>
		<td class="value"><code><span class="php-keyword1">array</span>()</code></td>
		<td class="description"><div>
			<a href="#$_error_array" class="anchor">#</a>

			<div class="description short">
				
			</div>

			<div class="description detailed hidden">
				

			</div>
		</div></td>
	</tr>
	<tr data-order="_error_messages" id="$_error_messages">
		<td class="attributes"><code>
			protected  
			array
		</code></td>

		<td class="name">
				<a href="source-class-CI_Form_validation.html#33" title="Go to source code"><var>$_error_messages</var></a>
		</td>
		<td class="value"><code><span class="php-keyword1">array</span>()</code></td>
		<td class="description"><div>
			<a href="#$_error_messages" class="anchor">#</a>

			<div class="description short">
				
			</div>

			<div class="description detailed hidden">
				

			</div>
		</div></td>
	</tr>
	<tr data-order="_error_prefix" id="$_error_prefix">
		<td class="attributes"><code>
			protected  
			string
		</code></td>

		<td class="name">
				<a href="source-class-CI_Form_validation.html#34" title="Go to source code"><var>$_error_prefix</var></a>
		</td>
		<td class="value"><code><span class="php-quote">'&lt;p&gt;'</span></code></td>
		<td class="description"><div>
			<a href="#$_error_prefix" class="anchor">#</a>

			<div class="description short">
				
			</div>

			<div class="description detailed hidden">
				

			</div>
		</div></td>
	</tr>
	<tr data-order="_error_suffix" id="$_error_suffix">
		<td class="attributes"><code>
			protected  
			string
		</code></td>

		<td class="name">
				<a href="source-class-CI_Form_validation.html#35" title="Go to source code"><var>$_error_suffix</var></a>
		</td>
		<td class="value"><code><span class="php-quote">'&lt;/p&gt;'</span></code></td>
		<td class="description"><div>
			<a href="#$_error_suffix" class="anchor">#</a>

			<div class="description short">
				
			</div>

			<div class="description detailed hidden">
				

			</div>
		</div></td>
	</tr>
	<tr data-order="error_string" id="$error_string">
		<td class="attributes"><code>
			protected  
			string
		</code></td>

		<td class="name">
				<a href="source-class-CI_Form_validation.html#36" title="Go to source code"><var>$error_string</var></a>
		</td>
		<td class="value"><code><span class="php-quote">''</span></code></td>
		<td class="description"><div>
			<a href="#$error_string" class="anchor">#</a>

			<div class="description short">
				
			</div>

			<div class="description detailed hidden">
				

			</div>
		</div></td>
	</tr>
	<tr data-order="_safe_form_data" id="$_safe_form_data">
		<td class="attributes"><code>
			protected  
			boolean
		</code></td>

		<td class="name">
				<a href="source-class-CI_Form_validation.html#37" title="Go to source code"><var>$_safe_form_data</var></a>
		</td>
		<td class="value"><code><span class="php-keyword1">FALSE</span></code></td>
		<td class="description"><div>
			<a href="#$_safe_form_data" class="anchor">#</a>

			<div class="description short">
				
			</div>

			<div class="description detailed hidden">
				

			</div>
		</div></td>
	</tr>
	</table>






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